Rather than rely on cumbersome devices that need to be worn on the arm or strapped to the chest, this smart shirt tracks your heart rate and electrocardiogram levels with built-in technologies. The VitalJacket comes in two versions, according to Coolest-Gadgets: one that stores data on a removable SD card that can be transferred to a computer, and another that features "online visualization" through a smartphone.

If you have particularly nosey bosses, however, be careful if they start issuing new uniforms that resemble these.